<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      .card {
        width: 200px;
        height: 254px;
        background-color: #07182e;
        position: relative;
        display: flex;
        place-content: center;
        place-items: center;
        overflow: hidden;
        border-radius: 20px;
      }
      .card h2 {
        z-index: 1;
        color: white;
        font-size: 2em;
      }
      .card::before {
        content: '';
        position: absolute;
        width: 100px;
        background-image: linear-gradient(180deg, rgb(0, 183, 255), rgb(255, 48, 255));
        height: 130%;
        animation: runBorder 3s linear infinite;
        transition: all 0.5s linear;
      }

      @keyframes runBorder {
        from {
          transform: rotate(0deg);
        }
        to {
          transform: rotate(360deg);
        }
      }

      .card::after {
        content: '';
        position: absolute;
        background: #07182e;
        inset: 5px;
        border-radius: 15px;
      }
    </style>
  </head>
  <body>
    <div class="card"><h2>CARD</h2></div>
  </body>
</html>
